Question

cómo hago la gráfica para la ecuación de x+4y=7 x-2y=1​

Answer 1

x+4y=7 x-2y=1​

x-2y=1

X = 2Y + 1

3 * (2Y + 1) + 4Y = 7

6Y + 3 + 4Y = 7

6Y + 4Y = 7 - 3

10Y = 4 ; Y = 4/10 = 2/5

X = 2Y + 1  

X = 2 * 2/5 +1  = 4/5 + 1 = 9/5

grafico